Story Cafe

Hey everyone! I've been kind of hesitant of starting my story 'Scarlet's List' because although I have had the idea of the story for quite a long while I'm still trying to figure out how I'm going to have the story play out. Also, I really do need to work on balancing out my description because I do "kill" my story with the over-description so any helpful tips on that would be really great, so thank you! Right..about 'Scarlet's List' the basic story line is as follows:
Ryder, a fourteen year old girl, had been taken by her young mistress in Boston and sent to Berkshire, England to be an indentured servant for a man named Mr. Jaime. After living there under horrible conditions for two years. Sissy, a young sixteen year-old who would be forced to marry Mr. Jaime later on in the year, tells Ryder that she needs to leave, to go back to Boston since Mr. Jaime wanted her to be dead after Ryder made a bad decision and over the years different servants had runaway from Mr. Jaime. Ryder was to find them before Mr. Jaime caught them and killed them. And her.
Feedback would be great! Thank you